Check if block is enabled for current page?

Seems only enabled blocks have a weight, so I did it like this:

{% if drupal_entity('block', 'volcano_search_autocomplete')['#weight'] is defined %}
  ...
{% endif %}

Thanks @leymannx,
I face the same issue, and the solution is what you said: the array returned in drupal_entity('block', 'mytheme_my_block_id') is a bigger array when enabled than disabled.

Here is an example dump (with my custom 2 menus):

// Disabled block
^ array:1 [▼
  "#cache" => array:3 [▼
    "contexts" => array:2 [▼
      0 => "url.path"
      1 => "languages:language_interface"
    ]
    "tags" => array:1 [▼
      0 => "config:block.block.menushop"
    ]
    "max-age" => -1
  ]
]

// Enabled block
^ array:3 [▼
  "#cache" => array:4 [▼
    "keys" => array:3 [▼
      0 => "entity_view"
      1 => "block"
      2 => "menuprincipal"
    ]
    "contexts" => array:3 [▼
      0 => "languages:language_interface"
      1 => "route.menu_active_trails:main-menu"
      2 => "url.path"
    ]
    "tags" => array:3 [▼
      0 => "block_view"
      1 => "config:block.block.menuprincipal"
      2 => "config:system.menu.main-menu"
    ]
    "max-age" => -1
  ]
  "#weight" => -16
  "#lazy_builder" => array:2 [▼
    0 => "Drupal\block\BlockViewBuilder::lazyBuilder"
    1 => array:3 [▼
      0 => "menuprincipal"
      1 => "full"
      2 => null
    ]
  ]
]

I don't know on what I'd rather do the condition:

• Check the size of the array?
• Check the definition of '#weight' and '#lazy_builder' ?

We don't know how that will evolve, so that's why it will be better to have a true boolean value to indicate this status.

What do we do now?